Microscale Atmospheric Pressure Plasma Jet as a Source for Plasma-Driven Biocatalysis

The use of a microscale atmospheric pressure plasma jet (μAPPJ) was investigated for its potential to supply hydrogen peroxide in biocatalysis. Compared to a previously employed dielectric barrier discharge (DBD), the μAPPJ offered significantly higher H₂O₂ production rates and better handling of larger reaction volumes....

Efficacy of Plasma Activation on Bleaching

This in vitro study aimed to evaluate the bleaching efficacy and color stability of nonthermal atmospheric pressure plasma (NAPP)-activated 40% hydrogen peroxide (HP) and deionized water (DW). Methods: Two hundred-forty bovine enamel−dentin samples were stained with a coffee solution before bleaching. Samples were randomly divided into 12 (n =...

Effect of Plasma-Activated Bleaching on Enamel Microhardness and Morphology

This in vitro study aimed to evaluate the effect of nonthermal atmospheric pressure plasma (NAPP)-activated hydrogen peroxide (HP) and deionized water (DW) on enamel microhardness and enamel surface morphology.<br/>

Adhesion performance on carbon fibre reinforced poly-phenylene sulphide depending on surface treatments

The use of fibre reinforced composite polymeric materials for primary helicopter structures has been increasing over the last decades due to their attractive properties; high performance and lightweight inducing more fuel savings than their metallic counterparts. With respect to the joining methods; structural adhesive bonding is preferred when...

Deposition of Hydrogen-Doped Indium Oxide Thin Films Using Atmospheric-Pressure Plasma-Enhanced Spatial Atomic Layer Deposition

Transparent conductive oxides (TCOs) are wide bandgap semiconductors characterized by high conductivity and high transparency in the visible and near infrared spectrum of light. TCOs find applications in displays, thin film transistors, solar cells, etc., due to these distinctive properties. Hydrogen-doped indium oxide (IO:H), a TCO first...

Surface Modification of Titanium and Polyimide Sheet for Adhesive Bonding

Major industrial sectors like automotive, aerospace and others are increasingly using polymer composites in their structural parts. Polyimide sheet and adhesives, are high performance polymers. They are widely used in various engineering applications due to their excellent thermal, mechanical and chemical properties and their resistance to...

Atmospheric pressure plasma surface modification of titanium for high temperature adhesive bonding

In this investigation surface treatment of titanium is carried out by plasma ion implantation under atmospheric pressure plasma in order to increase the adhesive bond strength. Prior to the plasma treatment, titanium surfaces were mechanically treated by sand blasting. It is observed that the contact angle of de-ionized water decreases with the...